.ai-main-center{
  height: 100%;
  width: 100%;
  .ant-layout-header{
    background-color: #fff;
    padding: 0px 28px;
  }
  .ant-layout-content{
    margin: 24px;
    overflow: scroll;
    background: #fff;
  }
  .ant-menu{
    .ant-menu-item{
      margin-top: 0px;
    }
  }
  
}